Adopting the technology of 18th century electrical experimenters, the AEP gamma ray electroscope uses the slow decay of electrical charge on gold leaf foils. The thick lead case prevents alpha and beta particles from affecting the gold leaf but gamma rays cause a slow discharge with the gold leaves gradually coming together. Used to measure radiation from weak gamma ray sources. Canada Science and Technology Museum

National Research Council (Atomic Energy Project)
Canadian Heritage Information Network, Canada Museum of Science and Technology, Musée de la civilisation, Stewart Museum, Canadian Medical Hall of Fame, Museum of Health Care at Kingston, University Health Network Artifact Collection, University of Toronto Museum of Scientific Instruments, University of Toronto Museum Studies Program, Suzanne Board, Dr. Randall C. Brooks, Sylvie Toupin, Ana-Laura Baz, Jean-François Gauvin, Betsy Little, Paola Poletto, Dr. James Low, David Kasserra, Kathryn Rumbold, David Pantalony, Dr. Thierry Ruddel, Kim Svendsen
1945 - 1952
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